PCI's website for "Samoa Philatelic Bureau" now has a "Philatelic Bureau Update" which says, "Due to extenuating circumstances surrounding Samoa Post's failure to act within the agreed terms we have been given no other choice than to end our representation until an amicable resolution can be reached. Going forward we do not have plans to offer new issue services for 2017 issues onward, though we will maintain an inventory of all prior issues offered from our company.

We apologize for any inconvenience caused by this change, we will keep you informed going forward with updates should our representation resume ...."

I am not aware of any public response to this from Samoa Post nor of any new stamp releases from Samoa Post since the highly controversial and ludicrously expensive "Parcel Post" surcharges (face value totalling £257.49p) which were issued on 31 March 2017.